82.4% of residents of Jefferson speak English at home.
16.6% of residents speak Spanish at home (35% speak English very well, 16% speak English well, 19% speak English not well, 31% don't speak English at all).
0.3% of residents speak other Indo-European language at home (100% speak English very well).
0.7% of residents speak Asian or Pacific Island language at home (69% speak English very well, 13% speak English well, 19% speak English not well).

Foreign born population: 287 (11.6%)
(16.7% of them are naturalized citizens)

Percentage of workers working in this county: 53.1%Number of people working at home: 22 (2.1% of all workers)

Means of transportation to work

Drove a car alone: 819 (78%)

Carpooled: 171 (16%)

Motorcycle: 2 (0%)

Walked: 19 (2%)

Other means: 20 (2%)

Worked at home: 22 (2%)

First ancestries reported:

Other groups: 697

German: 330

United States or American: 241

Irish: 199

English: 169

Scottish: 52

Norwegian: 49

Swedish: 44

French (except Basque): 35

Dutch: 32

French Canadian: 29

European: 24

Polish: 24

Italian: 21

Czech: 21

Danish: 13

Russian: 12

Welsh: 10

Portuguese: 9

Canadian: 7

Greek: 7

British: 7

Finnish: 6

Lithuanian: 6

Scotch-Irish: 6

Celtic: 4

Swiss: 4

Basque: 4

Syrian: 2

Romanian: 2

Scandinavian: 2

Hungarian: 2

Ukrainian: 2

Arab:: 2

Estonian: 1

Czechoslovakian: 1

Most common places of birth for the foreign-born residents (%):

90%Mexico

2%Hong Kong

1%Korea

1%Germany

1%Micronesia

1%United Kingdom

1%Sweden

Place of birth for U.S.-born residents:

This state: 1,320

Northeast: 40

Midwest: 186

South: 140

West: 497

43% of Jefferson residents lived in the same house 5 years ago. Out of people who lived in different houses, 47% lived in this county. Out of people who lived in different counties, 66% lived in Oregon.